Estimate your Kolkata (CESC) home electricity bill from the official tariff: slabs, fixed charge, surcharges, duty and subsidy.
Quick answer
CESC charges Kolkata homes slab by slab: ₹5.18 a unit for the first 25 units, ₹5.69 up to 60, ₹6.70 up to 100, ₹7.45 up to 150, ₹7.62 up to 300 and ₹9.21 above, plus ₹15 per kVA a month, MVCA and duty (WBERC order for CESC).
Rates last checked 9 November 2026 against official tariff orders. Values marked "see your bill" change month to month.
| Item | How it is worked out | Amount |
|---|
Kolkata (CESC) domestic slab rates
| Units per month | Rate per unit |
|---|---|
| 1–25 | ₹5.18 |
| 26–60 | ₹5.69 |
| 61–100 | ₹6.70 |
| 101–150 | ₹7.45 |
| 151–300 | ₹7.62 |
| Above 300 | ₹9.21 |
CESC supplies Kolkata and Howrah. The rest of West Bengal is supplied by WBSEDCL, which bills quarterly at different rates: use the West Bengal (WBSEDCL) calculator.
How to use this calculator
- Enter the units from your bill (current reading minus previous reading).
- Copy any monthly surcharge percentage from your latest bill. It changes every month.
- The result is an estimate. Meter rent, arrears, late fees, rebates and rounding are not included.
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Official sources
This calculator is built from official tariff orders and does not rely on third-party wording.